class Car1():
    """奔驰，我的最爱"""
    def __init__(self,manufacturer,model,year):
        """初始化操作，创建描述汽车的属性"""
        self.manufacturer = manufacturer
        self.model = model
        self.year = year
        self.odometer_reading = 0
    def get_descriptve_name(self):
        """返回描述信息"""
        long_name = str(self.year) + '' + self.manufacturer + '' + self.model
        return long_name.title()

    def read_odometer(self):
        """行驶里程"""
        print("这是一辆新车，目前仪表显示行驶里程是"+str(self.odometer_reading)+"千米!")

my_new_car = Car1('Benz','E300L',2016)
print(my_new_car.get_descriptve_name())
my_new_car.odometer_reading=12
my_new_car.read_odometer()    